Picker-check for looms.



w. H. AYER. PIGKBR CHECK FOR LOOMS.

PATENTED JULY 23, 1907.

' APPLICATION rILnn'snP'T. 4,-1506.

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UNITED STATES PATENT OFFICE.

.WAILLLAM H. AYER, OF OLAREMONT, New HAMPSHIRE.

PICKER-CHECK non ooms Specification of Letters Patent. Application filed September 4, 1906- Serial No. 883,127.

Patented July 23.1907.

yielding buffer to stop the flight of the shuttle, which by slight changes may be loom now in ordinary use.

Another object of my invention, is the provision of a shuttle check which will yield quickly to the'impact of the shuttle, on the picker but which will return more slowly to its normal position, so that it will not cause the shuttle to rebound. I The invention also has for its object, to provide a yielding impact band which may be quickly and readilyadjusted both as to tension, and as to location with regard to the shuttle guides. 7

With these and other objects in view, my invention consists of a yielding impact band, a stationary and an adjustable post over which the impact band is adapted to move, and a pair of adjustable coil springs, the ends of the impact band being secured to said springs;

Other novel and useful features of constructiom/combinatiou and-arrangement of parts will become apparent from the following description taken in connection with the drawings.

Figure 1, is a plan view of my improved shuttle check as applied to an ordinary shuttle box guide. Fig. 2. is a frontend view thereof looking toward the right of Fig. 1. Fig.3, is a rear end. elevation of the same. Fig. 4, is a detail sectional view of one of the coil springs and the spool upon which it is mounted. Fig. 5, is a similar view' of a slightly modified form of coil spring and support therefor.

In the drawings: the numeral 1, designates the shuttle box guide of an ordinary loom provided with the usual guiding flanges 2. Secured to the frame of the box guide by means of the bolt 3, is a base plate 4, preferably formed with an extension 5, to engage the side face of the guiding flange and prevent lateral movement of the base plate.

At the lower end of the base plate, at a point some distance below the passage between the guiding flanges, is provided a post or lug 6, which is preferably formed integral with the plate. This post is practically semicircular in'shape so as to provide an outer curved wearing surface. Adjustably fixed to the upper end of the base plate, upon the adjustable securing bolt 7, is an eccentric roller 8, and passing over said roller and the applied to any drop box and thus prevents undue friction of the post at the opposite end of the plate, is an impact band 9, of leather or other suitable material. Upon the im-' pact band, opposite the-opening betweendthe guiding flanges, is secured by means of fastenings 10, a metal re-inforcing strip .or plate 11, adapted to receive the impact of the shuttle on the picker.

Mounted in the base plate in therear of the impact band are a pair of bolts 12, provided-with securing nuts 13. Upon said bolts are mounted the ,spools 14, af-

ranged one above the other and provided with an outer retaining flange 15. Coil springs 16, are wound upon thespools and to the hooked ends 17, of the springs, are secured the free ends of the impact band. 7 The bolts 12, are each ppovided with a narrow or elongated head 18, which engages a slot or cut-away portion 19, formed in the center of the transverse ridge 20, on the head of the spool, so that the spool is thereby'held against rota- 7 tion on the bolt. The inner endsof the springs are anchored inthe spools (shown in dotted lines Fig. 4) and as the outer or free ends, are secured to the impact band,

. the tension of theimpact band may casilybe regulated by loosening the nuts on the bolts 12, and rotating the bolts until the springs bringithe impact band to the proper tension.

To prevent rapid wear of the spring coil, I may use a slightly modified form of support for the coil, as shown in Fig. 5. In this instance, the supporting roller'and securing boltare the same as before, but between 13118 .5 outer coil spring 21, and the stationary spool 22, is interposed a wire coil 23, which is loosely mounted upon the spool. This wire coil 23, moves with the coil spring parts, and allows access of oil to the adjusting roll.

To adjust the shuttle check to looms of various makes, it may be necessary to move the impact band toward or away from the guiding flanges. This is done by loosening the eccentric roller which supports one end of the impact band, and rotating said roller until the band occupies the proper position. The tension of the band'is readily altered by rotating'the adjustable rollscarrying the coil springs. By placing the spring rolls in rear of the impact band and located above the point of impact on the band, a perfectly clear space is left between the two parallel sides of the band, so as to allow great freedom in the movement of the band, a point which is readily appreciable. As described, it will be observed that the impact band is supported uponand passes over two posts with which it has frictional contact, and as with every impact it slides over both of the posts, double frictional contact surface is provided, and the band is greatly retarded in its return movement aftcrthe impact.

From the foregoing description taken in connection with the drawings, it will be evident that I have procal, and accomplishes ail the-objects hereih set forth.

-'the band formingsupports for the springs.

of shuttle check, which is entirely efficielit and prficth' 1. A shuttle cheek comprising an lmpaclqhand passing-1 over a fixed and an eceonfrieally, mounted frictional support the lnstinamed mlppoft for purpose of adjustment, 5.

the band each secured to '3. In a shuttie check, me 'combi'ndtloh with 1!) fixed and a relatively adjustable support, an lmpzict hand pissing over said supports, of 'adjustdbl'e lndependht' tension means for the free ends of the bond sold meahs cjam jm in'g coiled springs m'oun't'ed upon spools, the

4. in g "shq tl eheck, the i dmb 'mtidn with a base plate ahd 'firi idjn'st'ahle support on the base. plate adjaoent the guiding flanges, an impact band passing over the supports, the ends of the band belng brought together and-each end s'cn'r'ed f0 'o'fie of the springs. 5. In a'shuitle check, the combination with a base plate and impact bau'd mounted thereon, supporting spools adjpstably secured to the base plate, coil springs confined on je ilhh otltheuspool's and each haying one end anchored to the spool, the tree ends of the springs being engaged by the ends 0! the impact band, and loose bearing coils interposed between the spools and the coils thereon to reduce the frictiohotfhepart. v i In tiesti nloh y whereof I 'afilxiny g'nn'iixi'e in presence of Firm witnesses..- g

' p WILLIAM H. Ayim.

witnesses ii'oo'kfir .i' MERRILL,"

rotatably adjustable to vary the tension.

spools being.

andiglildlngifl nges, of spools,adjustablfsecured to the V base plate, splral sprlngs confined upon said spools, a fixed 

